Removing DPMS Flash Hider

I bought my DPMS Panther Lite less than a year ago. It has a flash hider with surfaces for a wrench. I am told that these are merely screwed on and that the threads on the barrel are one-half by twenty-eight. So there is no solder or pin? The FH can be unscrewed with sufficient muscle power? One unscrews this counterclockwise as you are looking at the muzzle?